Here is my code in Update function. The object has a box collider.
if (Input.GetMouseButtonDown(0)) { 
    Ray ray = camera.ScreenPointToRay(Input.mousePosition); 
    if (Physics.Raycast (ray, out hit3, 400.0F)) {
        wName = hit3.collider.gameObject.name;
        Destroy(hit3.collider.gameObject);
    }
}
But the box collider is not getting destroyed.
How can I destroy it?
Its working now with code
 Destroy(hit3.collider);
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